1.
the middle number in a set of numbers
2.
a middle state or a way something is communicated
3.
to help settle a disagreement between sides
4.
a person who helps resolve a conflict
6.
a round before the final competition
7.
punctuation that connects closely related ideas
10.
half of a sphere (like half the Earth)
11.
half of a circle or rounded space
12.
the line dividing Earth into equal halves
15.
a math statement showing two things are equal
